Jason Lewis, a senior environment artist for Obsidian Entertainment, started a personal project earlier this year that was meant to teach him the ins-and-outs of Unreal 4. That project soon ballooned, and other developers at Obsidian got involved in making what they’re calling an “interactive fan art piece.”

The human eye can only perceive 72 frames per second. We've been seeing games at 60 frames per second for some time. And as graphics approach photorealism with current computing power, some suggest that the days of giant leaps in visual quality are past us, and we'll be seeing smaller refinements going forward.